Pneumatic-tibe pttmp



L l.. HARPER.

PNEUMATIC TIRE PUMP.

Asme/mon FILED remis. |920.

Patenwd Mar. 29, 1921.

A. mannerthatrotacion of the wheel wiuata providev a device of thischaracter, comprising UNITED: STA

OFFICE.,

- .IoENer.. or SEATTLE WASHINGTON.

To all whom itmay concern -Be it known that I JHN L. Henri-11;, a citizen of the UnitedStates, andA resident of "the lcity of Seattlefcountyj of, KingrandV State of Washington, have'invent'ed certain new and useful'lmprovements in Pneumati'cf Tire Pumps, of whichy 'thel following yis a speciicationf f v v 5 l My invention relatestoimprovements pneumatic tire pumps,' and morel particularly to pumps of that character appllcableltothe wheelof an automobile, or the like,in such a ate the pump tol fill the tire thereon.v

It isthe principal object of the inventiony toprovide a pump of the above character which may be easily and quickly `mounted upon a wheel, 'or removed therefrom, and

. i which is offsuch a character that itl .will re- 20 quire but very little spaceforstorage and may be convenientl carried with the vehicle. lt is va further o ject ofthe inyention to a double acting pump that is p'ivotally sup-4 ported by a brac etl ada ted to be removably attached to a part, suc asa spoke, of the vehicle wheel and which hasta. pistonrod attached to fa pivotrpin eccentrically located y with respect to thevehicle wheel` and which kis retained in af relatively fixed ,positionf by 'at member extendible /to the vehicle body so that as the wheel rotates, the'pump will be .4 actuated to fill Vthe 'tirewith :which ity is'.

i f cylinder,

Y liso 4In accomplishing the objects of the inven-V tion I have provided the rimproved, details of construction, thepreferred forms; of which are illustratedv in the accompanying 'draw-v igure `1 is a side viewof the rear portion Vof an automobile, showing a pump embodying the present invention mounted on the vehiclewheel. g Y l f Fig. 2 is a-side view of the pump and part of the vehicle wheel., f

Fig. 3 is an enlarged-view of the pump parts `being in section for better illustration.

Fig. 4 is a cross Fig. Y l

Referring more in detailv to the several section on the line 1Q-4 of `figures o f the drawing, wherein like reference numerals designate like parts, 1designates the pump-supporting bracket, lwhich consistsof a spoke engaging portion 2 provided on its inner face with two spaced apart thumb nut 10 threaded thereon,

Vcharge therethrough.

PNEUMATICV-TIRE 'PUMP.

Specification of Letters-Patent. j latented Mal- 29, 1921 lippnca'ami` inea rbruary `a,

1.920,Y serial ne. 355,897.

bosses2 3 and. 4, having notches ltherein for receiving the spoke of a wheel, and having inwardly curved, laterally extending arms 6 and 6', adapted to overlie and engage the spokes at opposite sides of the mounting spoke so as to give rigidity to the bracket.

' .The means for attaching the bracket to the l ingV end l2 which terminates, when thev bracket is properly placed on the wheel, concentrically adjacent theend of the wheel hub. Fixedly attached to and extending downing. a laterallyandoutwa-rdly turned end 15 whereon the end of a pump cylinder 16 is pivotally mounted the pump cylinder being closedv at both ends by caps .17 and also provided a't'each end withcheck valves ndir catedfat 18, of a` character that: willadmit Y but prevent any dis-y air int-o the cylinder Extending .through the inner end cap of the 'pump' cylinder piston rod 20 which` is equipped ,within thel cylinder with a pis? ton'21 and at its outer end ispivotally attached ktoa pivot pin 22, extending out- Wardly from an arm or extension 23 that is rotatably mounted on the end section 12 of the bracket; the center about which the arm rotates being concentric with the vehicle wheel, and the pivot pin 22 is retained against movement by means of a series of telescopically joined rods 24 which form an extendible armV 25 that isattached by means of a clamp 25 to a part, such as the foot board, `of the vehicle body.

Leading from the opposite ends of the pump cylinder are air tubes 26 and 26', which connect to a tube 27 that, at its end, is attached to the valve stem of the tire. A safety valve of any of the wellcknown types which will prevent excessive pressure within the tire may be included in the connection, if desired. f

Assumingthat the device is constructed Awardly from the out-turned portion 11 of the l Y bracket is a pump-supporting arm 14, hav-c Y Lavaca@ as described, in using the same, it is applied to a vehicle Wheel in the manner as shown in Fig. l, by placing the notched bosses on the inner face of the bracket against a spoke and securing` the same on the Wheel by placing the hooked end of the bolt 7 about the spoke and' tightening the thumb nut against the outer face of the bracket, care being taken to see that the inner end'of the bracket and center about Which the arm 23 is mounted, is concentricwvith respect to the Wheel hub.

The rod sections Whichfform the arm 25 are then assembled so that'.V they may extend and be attached to any fixed member, 'such as the foot board vor fender of thevehicle..

The Wheel is then rotatably driven` either after raising the same from the ground, or Y by` forward movement of the vehicle so that the pump is carried With theWheel as it Vrotatesfabout the stationary and eccentricpivot point 22,-Which causes thefpiston .to bereciprocated Within the cylinder and `air to be forced into the tire.

When the tireis filled, the `pump may be removed from the Wheel by loosening the Y bolt 7, and the clamp V26. VThe sections of the arm 25 may then be disassembled and the partspplaced'vvithin thetool box of theV vehicle. z

it is apparent that a pump of this Vcharf acter may be easily and quickly attached or removed from position, Will: eliminate manual labor in lling --a tire and Will require very little storage space in the vehicle.

What I claim as neW is:v The combination With of the character described,` of lapneumatic tire pump comprising apump supporting bracket removably mounted-on a'spoke of the Wheel and having its inner end extending tothe axial center f the Wheel, a pump cylinder pivotally supported from 'said' bracket, and having air tube connection With the tire of the Wheel,;an arm 'pivotally mountedon the bracket in the axial line `of the Wheel,V and havingV an extension adapted to be.` fixed to a non-movable point to prevent a vehicle Wheel rotation of the arm With the bracket, a pivot pin extending from said arm eccentric of the Wheel, and a piston rod for the pump attached to `said pivot pin so that rotation of .theWheel actuates the pump to i'ill the tire.

. 2. The combination With a `vehicle Wheel Vof the character described, of a bracket hav-A -ing spaced apart notched bosses on the inner face thereof adapted to receive a spoke of the Wheel thereinfand'having laterally extending arms adapted'toV overlie adjacentV from thefpump and` attachedto said eccen trically located pin and an extensionjf'rom the pin adapted to' be attached to :aixed point to prevent rotation of the pin With the bracket so that rotation of the Wheel Will actuate the pump piston. I Y

'8. The combination With a vehicle Wheel of the character described, of a pneumatic tire pump connected With the' tire andhaving asupporting bracket removably attached to a spoke of the Wheel; the inner end of the bracket being extended to the axial line of the Wheel, an arm rotatably mounted onv the bracket concentric With the Wheel,;a pivot pin extended "from the. arm eccentric ofthe Wheel, a piston'rodffor thepump at-V tached to'saidecc'entric pivot pin, and an armve'xtending from thepinconsisting of a plurality of telescopically connected links. the outer one` of saidjlinks having a clamp thereon to `be attachedto anon-'movable part of the Vvehicle to prevent revolutionfof'the arm` and pivot` pin Withf the pump, forlthe purpose set forth. j 1 v l Signed at Seattle," Washington, this 15th day `ofvJanuary, 1920.

, v, l OHN HARPER. 

